<template>
  <div class="about">
    <div class="p-index">
      <p>
        hello hello hello hello hello hello hello hello hello hello hello hello
        hello hello hello hello hello hello hello hello hello hello hello hello
        hello hello hello hello hello hello hello hello hello hello hello hello
        hello hello hello hello hello hello hello hello hello hello hello hello
        hello hello hello hello hello hello hello hello hello hello hello hello
        hello hello hello
      </p>
      <button type="button">按钮</button>
      <div class="pp">
       <p> hello hello hello hello hello hello hello hello hello hello hello hello
         hello hello hello hello hello hello hello hello hello hello hello hello
         hello hello hello hello hello hello hello hello hello hello hello hello
         hello hello hello hello hello hello hello hello hello hello hello hello
         hello hello hello</p></div>
    </div>
  </div>
</template>
<script></script>
<style scoped>
.p-index > p {
  text-indent: 40px;   color: transparent;
  text-shadow: 0 0 5px rgba(0,0,0,0.5);
}
button {
  background-image: linear-gradient(#5187c4, #1c2f45);
  background-size: auto 200%;
  background-position: 0 100%;
  transition: background-position 0.5s;
}
button:hover {
  background-position: 0 0;
}.pp{
  width: 300px;
  border: green 5px solid;
 }
</style>
